VAV Solutions

Our Universal VAV Control Solution is engineered to break the monopoly of proprietary Tier-1 brands. Built on a hardware-decoupled architecture, this system integrates high-precision control logic with extreme versatility. By separating control intelligence from peripheral hardware, we allow you to choose your own actuators and sensors, ensuring maximum profit margins and total control over your supply chain.

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Solution Diagram

Advantages

Strategic Hardware Decoupling

Tired of being locked into a single vendor's ecosystem? Our HDC (Controller) + HMI (Terminal) architecture is fully compatible with universal 0-10V actuators. You gain the freedom to optimize your hardware costs without sacrificing system performance.
Universal Sensor Integration

Our system acts as a universal hub, supporting third-party Modbus RTU or 0-10V analog sensors (CO2, VOC, Humidity, Pressure). This flexibility allows you to adapt to specific project requirements and leverage local availability.
7-Day Rapid Branding

We accelerate your time-to-market. Our team can deploy your customized UI, logo, and local language within just 7 working days, transforming our high-end technology into your proprietary branded solution.

Seamless Industry Standards

With native BACnet MS/TP and Modbus RTU support, our solutions ensure plug-and-play integration into any existing Building Automation System (BAS) or BMS.
High-Precision BACnet Air Pressure Control

Our system features integrated high-precision sensors for BACnet air pressure and velocity control. It delivers stable airflow modulation and eliminates PID "hunting," ensuring quiet and precise environment control for labs and offices.
Safety Control and Fault Alerts

The system features self-diagnostics and fault alert functions, assisting maintenance personnel with early intervention.

Why Choose Saswell Decoupled Solution over Traditional Integrated VMA?

Key Features	Traditional Integrated VMA	Saswell Decoupled Solution	Client Value
Hardware Architecture	Bundled Design: Controller and actuator are integrated as one; non-detachable.	Decoupled Design: Controller and actuator are fully independent, allowing for flexible pairing.	Lower Maintenance Costs: Replace only what is broken; no need to scrap the entire unit due to a single component failure.
Supply Chain Freedom	Brand Monopoly: Limited by a single brand's spare parts supply and pricing system.	A perfect VMA controller alternative. Compatible with any standard 0-10V actuators (e.g., Belimo, Gruner) and seamlessly joins existing JCI or third-party BACnet MS/TP networks.	Zero Lead-Time Risk: Gain procurement autonomy; no longer vulnerable to specific brand stock shortages.
Wiring & Installation	Standard Wiring: Complex on-site construction; reverse polarity easily leads to equipment burnout.	Non-polar PLC Tech: Power and data share two non-polar wires.	50% Efficiency Boost: Ultra-simple wiring that completely eliminates faults caused by connection errors.
Control Logic	Floating Point Control: Slow response; difficult to achieve fine-tuned airflow adjustment.	0-10V Precision PID: High-precision pressure sensor + linear regulation logic.	Eliminate System Oscillation: Smoother and quieter operation without repetitive damper hunting.
System Integration	Closed/Limited: High costs associated with integrating into third-party Building Automation Systems (BAS).	Open Protocols (BACnet): Native support for standard protocols with built-in Reheat and DCV logic.	Seamless Integration: Easily connects to various automation platforms; supports LEED/WELL certification.

Application Scenarios

Universal VAV Control System with BACnet Air Pressure Logic

Energy-Saving Hotel & Commercial Office Logic

Implements advanced Hotel Logic and CO2-based Demand Controlled Ventilation (DCV). This universal controls solution optimizes air quality and energy use based on real-time occupancy, ideal for LEED/WELL projects.

Pressure control for industrial environments

Zoned temperature control for residential and apartment ventilation systems

Integrated control of fume hoods, including lighting, sash, and control panel

Related Products

VAV Controller

HDC218-VAV

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● Power Input: 100~240VAC / 50~60Hz
● Built-in Power Conversion Module: Provides 24V/1A for damper power supply
● Built-in Digital High-Precision Differential Pressure Sensor
● Supports BACnet MS/TP and Modbus Protocols
● 3 Analog Outputs (AO), 5 Digital Outputs (DO), 3 Digital or Analog Inputs
● Can be expanded with additional I/O via HDC-IO
● Applicable for VAV Box, Venturi Valve, Variable Air Volume Valve, Lab Fume Hood Control, etc.
● Dimensions: 121 x 113 x 47.3 (mm)

The ultimate universal VAV solution designed for high-performance velocity control and seamless BACnet integration.

HMI Control

SAS965-HMI

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● Power Supply: 9~30VDC, DC Carrier Communication and Power Supply
● Display: 4-inch full capacitive touch color screen, resolution 480*480 dpi
● Temperature Display Range: 0~60°C, accuracy ±0.5°C
● Humidity Display Range: 10~99%, accuracy ±5%
● Interface: 2-wire DC carrier communication; external NTC sensor
● Optional Wi-Fi Function: Supports remote control via mobile app
● Dimensions: 86*86*11mm

Get In Touch

Contact our friendly Customer Service team for any Question,Concern, or Suggestion. We'd love to hear from you!

Headquater hotline: +86 755 61218391

Headquater email: info@saswell.com

MENA tech support hotline: +97155 6743682

MENA tech support email: support@saswell.com